Island



(No Model.)

J. F. THAYER.

STAPLE FASTENER. No. 427,289. Patented May 6, 1890.

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NITED STATES ATENT JAMES F. Tl-IAYER, OF PROVIDENCE, RIIODE ISLAND.

STAPLE-FASTEN ER.

SPECIFICATION formingpart Of Letters Patent NO. 427,280, dated May 6, 1890.

Application filed March 19, 1890. Serial No. 344,568- (No model.)

To all whom it may concern.-

Be it known that 1, JAMES F. THAYER, a citizen of the United States, residing at Providence, in the county of Providence and State of l-thode Island, have invented certain new and useful Improvements in Staple-Fasteners; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and t0 the letters of reference marked thereon, which form a part of this specification.

My present invention relates to an improvement in metallic button-fasteners; and it consists, essentially, of a two-pronged wire staple having a crown or arch and legs of a uniform size, and notched or cut away at or near the point of intersection of the crown and legs, and having enlarged or expanded free ends, all as will be hereinafter more fully described.

Figure 1 represents a plan view of my improved staple-fastener. Fig. 2 is a side elevation of the same. Fig. 3 represents the fastener with button as secured to fabric.

Referring to the drawings, A represents my improved fastener, formed in the present instance of round wire and of inverted U shape, comprising the crown or arch a and legs 0 c, terminating in enlarged or expanded free ends (I (I, said ends being outwardly beveled and thinned at the points, the cutting-edges of the same standing at right angles to the length of the staple, as shown in Figs. 1 and 2 of the drawings, the legs above the expanded ends and the crown of the staple being of a uniform SlZO. The outer sides of the staple A are notched or cut away, as at b, at or near the point of intersection of the crown and legs to prevent the staple from tipping sidewise in the jaw of a setting-instrun'ient while being secured to fabric, as shown in the drawings.

\Vhen secured to fabric with a button, the legs of the staple after passing through the fabric are bent outward and clinched on the under surface of the same, as illustrated in Fig. 3, the notches b I) being substantially on a line with the upper surface of the fabric.

The advantages of my improvement are evident without a more minute detail. Any desired form of wire may be employed, and the crown or arch of the staple maybe 'aried in shape. As previously stated, the notches form bearing-surfaces on opposite sides of the staple to prevent it from tipping sidewise in the setting-instrument, and by weal;- ening the legs of thefastencr somewhat forms a determinate bend at that point, thus materially assisting in the clinching operation, as in attachment to fabric. A reliable staplebutton fastener is thus produced at a small cost for manufacture.

Having described my invention, I claim 1. A staple-fastener comprising a crown. and legs composed of metal of uniform size and notched or cut away at or near the point of intersection of the crown and legs and having outwardly beveled and enlarged or expanded free ends, substantially as herein spcei lied.

2. .A staple-fastener made "from wire, having a crown and legs and notched or cut away at or near the point of intersection of the crown and legs, substantially as and for the purpose set forth.

In testimony whereof I aflix my signature in .the presence of two witnesses.

Witnesses:

F. A. SMrrI-t, .l'r., GEO. W. lnun'ricn. 

